I find it amusing that every other episode or so, there's a mysterious "Ed look-alike." ^^; I wanted to post about this in the 48 thread, but it didn't work. Anyway, here are some possibilities as to who he is. Some were mentioned in the 48 thread. (This is from the preview btw)
1. Envy's true form
2. Hoenheim's body when he was younger
3. Ed with his arm back
4. Ed the way he looks behind the gate
5. Some sort of flashback, although I have no idea of what
7. Wrath, after he steals Ed's body. (*dodges flying objects*)
8. Envy making a bad attempt to look like Ed.
9. Al (highly unlikely)
I think it's Russel, although I'm not sure. The shirt looks like something only Russel would wear somehow. Maybe he straightened his hair and got contacts? ^^; Or it could be Ed on the other side of the gate, the way he would have been if that incident never happened to begin with. We'll see.
Has anyone noticed how in the preview, Al's "head" falls or something like that? Maybe he gets his body back and discards the armor?
Also, I wonder what happens with Rose. Ed did say he might not see her again, and usually, when he says that, it's true. I hope Dante didn't take her body.
I'm also worried about what will happen to Roy. The whole episode 48 was named after Ed's "Sayonara," so I wonder if that means something will happen to him. He'd better be all right! -.-
These previews raise soooo many questions. Like what else was up with the 5th lab, what happens to Al, and is Hoenheim alive? And just what's the deal with Archer, anyway? This is all getting too confusing. Anyway, I think too much, don't I? ^^;;;
Random note: The title is "Tobira no Mukou e," same as the second ending. "Tobira" literally means door, not gate. I wonder if the theme of this episode has anything to do with the second ending. The lyrics were pretty interesting. (Again, I think too much.